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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Manager	Matti Karttunen	Germany	1 2 3 4 5
2	Sales Agent	Pascale Cartrain	Argentina	1 2 3 4 5
3	Sales Agent	Howard Snyder	England	1 2 3 4 5
4	Sales Agent	Matti Karttunen	Brazil	1 2 3 4 5
5	Owner	Georg Pipps	Italy	1 2 3 4 5
6	Sales Manager	Georg Pipps	Spain	1 2 3 4 5
7	Sales Agent	Patricio Simpson	Germany	1 2 3 4 5
8	Sales Consultant	Georg Pipps	Austria	1 2 3 4 5
9	Sales Associate	Antonio Moreno	England	1 2 3 4 5
10	Marketing Assistant	Elizabeth Lincoln	England	1 2 3 4 5
11	Marketing Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
12	Owner	Howard Snyder	England	1 2 3 4 5
13	Sales Representative	Howard Snyder	Italy	1 2 3 4 5
14	Owner	Elizabeth Lincoln	Italy	1 2 3 4 5
15	Marketing Manager	Howard Snyder	Germany	1 2 3 4 5
16	Marketing Assistant	Elizabeth Lincoln	USA	1 2 3 4 5
17	Sales Associate	Jaime Yorres	Austria	1 2 3 4 5
18	Sales Associate	Elizabeth Lincoln	Spain	1 2 3 4 5
19	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
20	Sales Agent	Elizabeth Lincoln	USA	1 2 3 4 5
21	Marketing Assistant	Pascale Cartrain	England	1 2 3 4 5
22	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
23	Marketing Assistant	Hanna Moos	Italy	1 2 3 4 5
24	Sales Agent	Patricio Simpson	Bulgaria	1 2 3 4 5
25	Sales Associate	Jaime Yorres	USA	1 2 3 4 5
26	Owner	Howard Snyder	USA	1 2 3 4 5
27	Sales Consultant	Hanna Moos	France	1 2 3 4 5
28	Sales Consultant	Hanna Moos	USA	1 2 3 4 5
29	Sales Agent	Matti Karttunen	Argentina	1 2 3 4 5
30	Accountant	Patricio Simpson	Italy	1 2 3 4 5
31	Accounting Manager	Matti Karttunen	Bulgaria	1 2 3 4 5
32	Sales Associate	Georg Pipps	France	1 2 3 4 5
33	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
34	Sales Representative	Jaime Yorres	Argentina	1 2 3 4 5
35	Sales Agent	Pascale Cartrain	France	1 2 3 4 5
36	Sales Consultant	Pascale Cartrain	Spain	1 2 3 4 5
37	Accounting Manager	Paul Henriot	England	1 2 3 4 5
38	Owner	Jaime Yorres	Italy	1 2 3 4 5
39	Sales Associate	Hanna Moos	France	1 2 3 4 5
40	Sales Manager	Matti Karttunen	Germany	1 2 3 4 5
41	Marketing Manager	Antonio Moreno	Austria	1 2 3 4 5
42	Sales Manager	Georg Pipps	Spain	1 2 3 4 5
43	Sales Agent	Howard Snyder	Austria	1 2 3 4 5
44	Accountant	Elizabeth Lincoln	Austria	1 2 3 4 5
45	Marketing Assistant	Matti Karttunen	England	1 2 3 4 5
46	Sales Representative	Jaime Yorres	Bulgaria	1 2 3 4 5
47	Sales Consultant	Paul Henriot	Austria	1 2 3 4 5
48	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5
49	Sales Consultant	Pascale Cartrain	Spain	1 2 3 4 5
50	Accountant	Georg Pipps	Spain	1 2 3 4 5
51	Owner	Pascale Cartrain	Germany	1 2 3 4 5
52	Sales Associate	Paul Henriot	Spain	1 2 3 4 5
53	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
54	Marketing Assistant	Antonio Moreno	USA	1 2 3 4 5
55	Sales Consultant	Matti Karttunen	USA	1 2 3 4 5
56	Owner	Jaime Yorres	Argentina	1 2 3 4 5
57	Accounting Manager	Antonio Moreno	Argentina	1 2 3 4 5
58	Accounting Manager	Howard Snyder	France	1 2 3 4 5
59	Sales Representative	Jaime Yorres	USA	1 2 3 4 5
60	Sales Manager	Antonio Moreno	Argentina	1 2 3 4 5
61	Sales Representative	Patricio Simpson	USA	1 2 3 4 5
62	Sales Manager	Antonio Moreno	Argentina	1 2 3 4 5
63	Sales Representative	Georg Pipps	Germany	1 2 3 4 5
64	Sales Associate	Howard Snyder	Austria	1 2 3 4 5
65	Accounting Manager	Georg Pipps	England	1 2 3 4 5
66	Sales Representative	Pascale Cartrain	Germany	1 2 3 4 5
67	Marketing Assistant	Antonio Moreno	Germany	1 2 3 4 5
68	Accountant	Elizabeth Lincoln	USA	1 2 3 4 5
69	Marketing Manager	Jaime Yorres	England	1 2 3 4 5
70	Sales Associate	Jaime Yorres	Brazil	1 2 3 4 5
71	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
72	Accountant	Jaime Yorres	England	1 2 3 4 5
73	Sales Agent	Hanna Moos	Argentina	1 2 3 4 5
74	Sales Manager	Elizabeth Lincoln	USA	1 2 3 4 5
75	Marketing Manager	Matti Karttunen	Austria	1 2 3 4 5
76	Sales Manager	Matti Karttunen	USA	1 2 3 4 5
77	Sales Manager	Paul Henriot	France	1 2 3 4 5
78	Sales Manager	Howard Snyder	USA	1 2 3 4 5
79	Sales Agent	Antonio Moreno	Argentina	1 2 3 4 5
80	Sales Representative	Paul Henriot	Bulgaria	1 2 3 4 5
81	Sales Agent	Jaime Yorres	Brazil	1 2 3 4 5
82	Accountant	Paul Henriot	England	1 2 3 4 5
83	Sales Consultant	Paul Henriot	Bulgaria	1 2 3 4 5
84	Sales Agent	Elizabeth Lincoln	France	1 2 3 4 5
85	Sales Consultant	Patricio Simpson	Spain	1 2 3 4 5
86	Accountant	Antonio Moreno	Spain	1 2 3 4 5
87	Sales Representative	Howard Snyder	Spain	1 2 3 4 5
88	Sales Associate	Elizabeth Lincoln	Argentina	1 2 3 4 5
89	Marketing Assistant	Jaime Yorres	Germany	1 2 3 4 5
90	Sales Agent	Antonio Moreno	Italy	1 2 3 4 5
91	Sales Consultant	Georg Pipps	Spain	1 2 3 4 5
92	Accountant	Antonio Moreno	France	1 2 3 4 5
93	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
94	Accounting Manager	Howard Snyder	Spain	1 2 3 4 5
95	Sales Consultant	Matti Karttunen	France	1 2 3 4 5
96	Marketing Assistant	Antonio Moreno	Brazil	1 2 3 4 5
97	Owner	Paul Henriot	USA	1 2 3 4 5
98	Sales Manager	Paul Henriot	Bulgaria	1 2 3 4 5
99	Sales Manager	Hanna Moos	Germany	1 2 3 4 5
100	Sales Manager	Paul Henriot	Italy	1 2 3 4 5


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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